The number of people affected by malaria this year till August 12, has climbed to 385 while the figure for chikungunya stands at 283.
Of the 496 dengue cases, 251 affected people were residents of Delhi while the rest of the cases diagnosed here were traced to other states. At least 79 cases have been recorded this month.
Nearly 120 cases of dengue were reported last month, while 15 were recorded in June.
The season for the vector-borne diseases kicked in mid- July and it generally lasts till November-end. Cases of all the three vector-borne diseases were reported much earlier this time, which doctors had attributed to early arrival of the monsoon.
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Dengue and chikungunya are caused by aedes agypti mosquito, which breeds in clear water. Anopheles mosquito, which causes malaria, can breed in both fresh and muddy water.
According to the report, breeding of mosquitoes has been reported at 1,04,758 households in Delhi. All the three municipal corporations have stepped up awareness drives -- distributing pamphlets and plying vehicles with loudspeakers issuing dos and don'ts for prevention of the diseases.
The government has banned over-the-counter sale of nonsteroidal anti-inflammatory drugs such as aspirin and brufen as their use may "pose a threat" to dengue and chikungunya patients.
At least 15 fatalities were reported last year at various hospitals in the city due to complications triggered by chikungunya though the civic bodies have kept the death tally at zero.
At least 21 deaths due to dengue were reported last year at various hospitals, including nine at AIIMS, though the official tally of the civic bodies stood at 10. Seventeen deaths suspected to be due to malaria in 2016 were also reported by the civic bodies.
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